Finding the Fourth Proportional to 823,492.14, 1,235,337.84 and 290,904.18
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Solution
The fourth proportional to 823,492.14, 1,235,337.84 and 290,904.18 is: 436,391.46
Step by Step Solution
- Step 1: Write the proportion equation
823,492.14 : 1,235,337.84 = 290,904.18 : x - Step 2: Convert to fraction form
823,492.14/1,235,337.84 = 290,904.18/x - Step 3: Cross multiply
823,492.14x = 1,235,337.84 × 290,904.18 - Step 4: Simplify right side
823,492.14x = 359,364,941,368.17 - Step 5: Solve for x
x = 359,364,941,368.17/823,492.14 - Step 6: Final answer
x = 436,391.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.